參數(shù)資料
型號(hào): ST6242BQ1/XXX
廠商: STMICROELECTRONICS
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封裝: PLASTIC, QFP-64
文件頁(yè)數(shù): 62/69頁(yè)
文件大?。?/td> 1846K
代理商: ST6242BQ1/XXX
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
65/69
ST6242B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST6242B is mask programmed ROM version
of ST62T42B OTP devices.
It offers the same functionality as OTP devices,
selecting as ROM options the options defined in
the programmable option byte of the OTP version.
Figure 1. Programming wave form
1.2 ROM READOUT PROTECTION
If the ROM READOUT PROTECTION option is
selected, a protection fuse can be blown to pre-
vent any access to the program memory content.
In case the user wants to blow this fuse, high volt-
age must be applied on the TEST pin.
Figure 2. Programming Circuit
Note: ZPD15 is used for overvoltage protection
0.5s min
TEST
15
14V typ
10
5
TEST
100mA
4mA typ
VR02001
max
150 s typ
t
VR02003
TEST
5V
100nF
47mF
PROTECT
100nF
VDD
VSS
ZPD15
15V
14V
65
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